Bose Sub1 Powered Bass ModuleSub1 Powered Bass Module combines with virtually any portable PA to deliver low end down to 40 Hz. When paired with the Bose L1 Pro32, Sub1 creates a more compact system and gives you bold bass from slim design that goes virtually anywhere. More bass. Less bulk. With a unique RaceTrack driver design, Sub1 offers powerful bass and an optimised centre of gravity. The drivers shape allows the physical enclosure of Sub1 to be slimmer without compromising